British Standards Institution. (1978). Method for the measurement of the concentration of particulate material in ducts carrying gases. British Standards Institution.
Chicago Style (17th ed.) CitationBritish Standards Institution. Method for the Measurement of the Concentration of Particulate Material in Ducts Carrying Gases. London: British Standards Institution, 1978.
ציטוט MLABritish Standards Institution. Method for the Measurement of the Concentration of Particulate Material in Ducts Carrying Gases. British Standards Institution, 1978.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.